\begin{abstract}{chinese}
反射式光纤位移传感器由于具有原理简单、实现容易、工作可靠等诸多优点而受到
越来越广泛的重视。本系统由于要同时兼顾高精度和大量程的要求,因此在反射式光纤
位移传感器的一般原理上进行了新的设计,使它较好的达到了实际的设计要求。鉴于本
项目中光纤传感头的设计与实现工作已经基本完成,本文主要侧重于对电路部分的设计
与调试工作进行描述。\par
......\par
\end{abstract}

\begin{abstract}{english}
Fiber-optic reflective displacement sensor attracts much attention for its particular
advantages, such as simply theory, easy realization, good stability and so on. With the
requirement of wide measurement range and high precision, it is re-designed based on the
basic principle of the simplest reflective fiber-optic sensor. For some work having been
finished at the beginning of this project, I will mainly describe the electric circuit.\par
......\par
\end{abstract}

